class_docstr: Socket implementation of TTransport base.
code: def open(self):
      if self.handle:
          raise TTransportException(
              type=TTransportException.ALREADY_OPEN,
              message="already open",
          )
      try:
          addrs = self._resolveAddr()
      except socket.gaierror as gai:
          msg = "failed to resolve sockaddr for " + str(self._address)
          logger.exception(msg)
          raise TTransportException(
              type=TTransportException.NOT_OPEN, message=msg, inner=gai
          )
      for family, socktype, _, _, sockaddr in addrs:
          handle = self._do_open(family, socktype)
  
          # TCP keep-alive
          if self._socket_keepalive:
              handle.setsockopt(
                  socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1
              )
  
          handle.settimeout(self._timeout)
          try:
              handle.connect(sockaddr)
              self.handle = handle
              return
          except socket.error:
              handle.close()
              logger.info(
                  "Could not connect to %s", sockaddr, exc_info=True
              )
      msg = "Could not connect to any of %s" % list(
          map(lambda a: a[4], addrs)
      )
      logger.error(msg)
      raise TTransportException(
          type=TTransportException.NOT_OPEN, message=msg
      )
  
imports: import errno
  import logging
  import os
  import socket
  import sys
  from .TTransport import TTransportBase, TTransportException, TServerTransportBase
label_desc: Use image node_id 7 for calling the TSocket obj's underlying member method code with example usage: obj.open() without return types